Hi,
after reading a lot of stuff about the item. I don't know what is the
right way.
Here is my problem.
I'm using Jboss 4.0.3 with a MySQL 4.1 with tables which use
the serial type as primary key.
I want to use entity beans which make use of the auto-increment feature.
I'm using xdoclet. Before I start I want to know which is the right way.
These are the things I found.
1. Solution
In the head of the bean
| * @jboss.entity-command name="mysql-get-generated-keys"
| *
| * @jboss.unknown-pk class="java.lang.Integer"
| * auto-increment="true"
|
Do I have do declare the column of the table with the primary key
as field in the bean?
The create method looks like
| /**
| * @ejb.create-method
| * @return Primary Key
| * @throws CreateException
| */
| public Integer ejbCreate() throws CreateException {
| return null;
| }
|
| public void ejbPostCreate() {
|
| }
|
2. Solution
I only declare in the head of the bean the following
| * @jboss.entity-command name="mysql-get-generated-keys"
| *
|
And the method declaration for the primary key is
| /**
| * Getter for CMP Field id
| *
| * @ejb.pk-field
| * @ejb.persistent-field
| * @ejb.interface-method view-type="both"
| *
| * @jboss.persistence auto-increment="true"
| *
| */
| public abstract java.lan.Integer getId();
|
The create method looks the same as in solution 1.
What is the right way?
Another problem is how can I access the bean when the key is
autogenerated? The create method delivers a null.
How can I access the generated key?
Thanks in advance,
Marcel.
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